Polished Soda Lime Glass Ballotini 3M S22 from Canada
Precision polished soda lime glass microspheres (S22 grade, ~220 microns) used as grinding media. Classified under HTS 7018.20.00.00 as microspheres ≤1 mm; polishing before annealing doesn't constitute 'worked' per chapter notes.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Size distribution sieve analysis mandatory; avoid magnetic contamination; declare specific gravity